Prepare the Dough: Roll out the chocolate dough on a lightly floured surface until about ¼ inch thickness, taking about 5-7 minutes.

Make the Filling: Combine butter, powdered sugar, and vanilla extract in a bowl and stir until smooth, about 3-5 minutes.

Assemble Rolls: Spread filling over dough, roll tightly, and slice into 1-inch pieces.

Bake: Preheat oven to 350°F (175°C), bake sliced rolls for 15-20 minutes until golden-brown.

Cool Before Serving: Let rolls cool on a wire rack for 10 minutes before serving.